Module wait 

Wait-for-VRAM polling queue (GPU-SHARE-003).

Polls the VRAM ledger until sufficient budget is available or timeout. Uses exponential backoff: 30s base, 300s max.

Contract

• wait_for_vram() returns within timeout + max_interval (worst case)
• Each poll iteration prunes dead PIDs + expired leases
• CPU usage < 1% during wait (sleeping between polls)

Structs

WaitConfig

Configuration for wait-for-VRAM polling.

WaitProgress

Produce a structured progress report for the current wait state.

Functions

fairness_via_expiry

Identify expired reservations eligible for reclamation (fairness via lease expiry).

progress_report

Build a progress report snapshot for the current wait state.

timeout_bound

Compute the maximum wait duration bound for a given config.

wait_for_vram

Poll the ledger until VRAM budget is available.